How many moles of?

Question

a) Cl2 are there in 7.1g of Cl.
b) Ag are there in 10.8g of Ag.
c) NaOH are there in 20cm3 of IN solution.
d) S8 are there in32g of Sulphur.


Please state the steps you used to get your answers

Answer 1

no of mol
= mass/molar mass

a) 7.1/(35.5*2) = 0.1 mol
b) 10.8/108 = 0.1mol
c) no idea sorry.. what's IN solution? :/
d) 32/ (32*8) = 0.125mol